AMAZON customers who sign up to the shopping giant's subscription service can look forward to 24 hours of slashed prices and flash sales with the announcement of another Prime Day.

The 24 hour sale is expected to rival Black Friday in terms of an online shopping frenzy, with amazing bargains.

The super-sale tomorrow, July 12, comes after the huge success of last year's Amazon Prime Day when the online giant slashed prices to celebrate Amazon's 20th anniversary.

But this year only customers who subscribe to Amazon Prime are eligible for the savings.

If you're not yet a member you can sign-up or start a free trial of the service before or on 12 July by visiting amazon.co.uk/primeday .

(Image: Chris Radburn/PA Wire)

Doug Gurr, Managing Director at Amazon UK said: "The response to Prime Day in 2015 surpassed all our expectations here in the UK, so we’re delighted to be bringing this major summer deals day back for our UK Prime members in 2016 with even more great deals available.

"We anticipate massive demand for the offers on Prime Day, so we recommend customers download the Amazon shopping app to receive notifications on their favourite deals."

When is Prime Day 2016?

Amazon Prime Day is on July 12.

What is Amazon prime?

Prime is a service that offers shoppers unlimited streaming of 15,000 movies and TV episodes and access to 800,000 Kindle books along with unlimited one-day delivery.